YICBOR Sewing Machine Bobbins 10-Pack for BERNINA 7 Series (0334365400) — Reliable winding, consistent thread delivery

These are ten precision replacement bobbins (Part No. 0334365400) made to fit BERNINA 7 Series machines and several compatible 5 Series models.

Keep your sewing projects moving with a set of ten YICBOR bobbins designed to match the specifications of BERNINA models including 500e, 540, 570QE, 590e, 700e, 710, 720, 750QE, 770QE, 780 and 790. Each bobbin in this pack is manufactured for consistent winding and reliable thread delivery so you can switch colours or replace broken bobbins without interrupting your workflow. The set is a practical spare-parts kit for hobbyists, professional sewers, and machine technicians who prefer to have multiple pre-wound bobbins ready at a moment's notice.

Will these bobbins fit my Bernina 7 Series machine?

Yes — these YICBOR bobbins are made to the same dimensions required by Bernina 7 Series models (including 710, 720, 750, 770, 780, 790) and also work with a selection of 5 Series machines listed by the manufacturer. They are intended as direct replacements for part number 0334365400, so mechanical compatibility and proper seating in the bobbin case should be maintained.

• Fits BERNINA 7 Series: 710, 720, 750QE, 770QE, 780, 790
• Compatible with several 5 Series and other models: 500e, 540, 570QE, 590e, 700e
• Manufactured to match the specified part number 0334365400

How do these bobbins improve my sewing workflow?

Having ten prepped bobbins reduces downtime from frequent thread changes, especially on multi-colour or lengthy projects. With spares on hand you avoid having to rewind mid-seam and maintain consistent stitch quality across seams and topstitching runs.

• Ten bobbins per pack for multiple thread colours or backups
• Stable thread delivery minimizes skipped stitches and tension shifts
• Convenient for quilting, embroidery, and production sewing setups

What should I check before using these replacement bobbins?

Confirm your machine model and part number (0334365400) match those listed for compatibility, and inspect each bobbin for smooth edges and uniform dimensions before winding. Proper winding tension and correct insertion into the bobbin case ensure consistent performance.

• Verify model compatibility and part number
• Inspect bobbin condition for burr-free edges and consistent size
• Wind smoothly and insert according to your machine manual

Are these bobbins suitable for professional or heavy use?

These bobbins are designed for regular sewing and are practical for both dedicated hobbyists and light-to-moderate professional use. For extended industrial or high-speed production, verify wear tolerance for your specific workload and consider maintaining a rotation of spares to minimize wear on any single bobbin.

• Good choice for home studios, quilting, and small production runs
• Ten-piece pack helps rotate bobbins to extend service life
• Check machine-specific requirements for heavy industrial use

Who is this for? Sewists who own compatible BERNINA 5 Series or 7 Series machines and want a reliable set of spare bobbins — whether you’re prepping for a large quilting project, managing an embroidery workflow, or stocking up for a sewing class. YICBOR’s 10-piece bobbin pack (Part No. 0334365400) offers a practical, cost-effective way to keep more thread colours ready and reduce interruptions during stitching.